Green’s Dictionary of Slang

1. a roll; a small load of bread.

1840		Flash Mirror 4: The Bug Walk [...] This house is a pannum supply; where can be had [...] a small starver and Irish jewels for a win.
1900		Bulletin (Sydney) 20 Jan. 14/2: ‘Ha’penny currint starver.’ I gave him the roll and took the coin.
1959		D. Niland Big Smoke 211: I know what the things I eat cost me. Starvers, crumpets, stale cakes, speckled fruit, pies.

2. a saveloy [a large sausage, it fills the stomach of a starving person].

1941

Baker Popular Dict. Aus. Sl. 71: Starver, a saveloy.